/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlinePresenceInterface.h
Starts an async operation that will update the cache with presence data from all users in the Users array. On platforms that support multiple keys, this function will query all keys.
void QueryPresence ( const [FUniqueNetId](API\Runtime\CoreOnline\Online\FUniqueNetId) & User, const [FOnPresenceTaskCompleteDelegate](API\Plugins\OnlineSubsystem\Interfaces\IOnlinePresence\FOnPresenceTaskC-) & Delegate )